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川西龙门山前雷口坡组四段储层特征及形成机理

王琼仙 宋晓波 王东 隆轲

王琼仙, 宋晓波, 王东, 隆轲. 川西龙门山前雷口坡组四段储层特征及形成机理[J]. 石油实验地质, 2017, 39(4): 491-497. doi: 10.11781/sysydz201704491
引用本文: 王琼仙, 宋晓波, 王东, 隆轲. 川西龙门山前雷口坡组四段储层特征及形成机理[J]. 石油实验地质, 2017, 39(4): 491-497. doi: 10.11781/sysydz201704491
Wang Qiongxian, Song Xiaobo, Wang Dong, Long Ke. Reservoir characteristics and formation mechanism of the 4th member of the Leikoupo Formation in Longmen Mountain front[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2017, 39(4): 491-497. doi: 10.11781/sysydz201704491
Citation: Wang Qiongxian, Song Xiaobo, Wang Dong, Long Ke. Reservoir characteristics and formation mechanism of the 4th member of the Leikoupo Formation in Longmen Mountain front[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2017, 39(4): 491-497. doi: 10.11781/sysydz201704491

川西龙门山前雷口坡组四段储层特征及形成机理

doi: 10.11781/sysydz201704491
基金项目: 中国石化“十条龙”重大科技攻关项目(P16092)资助。
详细信息
    作者简介:

    王琼仙(1984—),女,硕士,工程师,从事储层地质和成岩作用研究。E-mail:wqxtop@163.com。

  • 中图分类号: TE122.23

Reservoir characteristics and formation mechanism of the 4th member of the Leikoupo Formation in Longmen Mountain front

  • 摘要: 川西龙门山前中三叠统雷口坡组雷四上亚段发育厚达百余米的潮坪相白云岩溶蚀孔隙型储层,可分为上、下2个储层段。对钻井岩心、薄片和物性分析表明,以白云岩类为主的下储层段优质储层呈多层叠置分布,储集性能优于灰质含量较多的上储层段。根据不同类型岩石物性统计及储层储集空间特征分析,结合扫描电镜、包裹体分析等技术对储层成因进行研究,认为“白云岩化+准同生期溶蚀+埋藏溶蚀”叠加形成了该套优质储层,其中,区域分布的潮坪相白云岩为储层的稳定广泛分布奠定了重要岩性基础;准同生期溶蚀控制了优质储层多层叠置分布;埋藏溶蚀叠加改造有利于孔隙的保持及储层渗透率的改善,进一步提高了储层的品质。

     

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出版历程
  • 收稿日期:  2017-01-25
  • 修回日期:  2017-06-06
  • 刊出日期:  2017-07-28

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